Make the webstore inline install dialog be tab-modal

chrome/browser/extensions/extension_install_prompt.cc

Index: chrome/browser/extensions/extension_install_prompt.cc
diff --git a/chrome/browser/extensions/extension_install_prompt.cc b/chrome/browser/extensions/extension_install_prompt.cc
index 9a90a37a8121499141040c9d8b9b96e33f35a7ee..e5ede17cbf313e06cdd4963404a428ef8c0354e0 100644
--- a/chrome/browser/extensions/extension_install_prompt.cc
+++ b/chrome/browser/extensions/extension_install_prompt.cc
@@ -407,6 +407,10 @@ bool ExtensionInstallPrompt::Prompt::ShouldShowPermissions() const {
          type_ == POST_INSTALL_PERMISSIONS_PROMPT;
 }
 
+bool ExtensionInstallPrompt::Prompt::ShouldUseTabModalDialog() const {

[Devlin, 2015/12/04 21:53:06]

Maybe a comment explaining the reasoning?

[asargent_no_longer_on_chrome, 2015/12/07 19:25:53]

Done.

+  return type_ == INLINE_INSTALL_PROMPT;
+}
+
 void ExtensionInstallPrompt::Prompt::AppendRatingStars(
     StarAppender appender, void* data) const {
   CHECK(appender);